New report of Trichoderma sp from Sub-Himalayan tea growing regions of West Bengal India

Trichoderma species (Hypocreaceae) is one of the world’s most common widely used plant growth-promoting fungus and, ecologically and economically important genus. Three newly discovered species of the fungal genera Trichoderma , Trichoderma asperellum Trichoderma hamatum and Trichoderma yunnanense , isolated from the rhizosphere zone of tea of North Bengal region, India have been identified through morphology and phylogenetic study of sequences of nucleotide. The analysed DNA sequences encompassed the internal transcribed spacer (ITS) regions of the rDNA cluster, specifically ITS1 and ITS2.The analyses show that T. asperellum , T. yunnaense , T hamatum are grouped within the Hamatum clade.